Java Backend Engineer (Hybrid) – REST & Spring Boot

Inetum2; Warszawa; Hybrid; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Cafeteria benefits

Referral bonuses up to PLN 6,000

Revenue sharing opportunities

Job summary

Inetum Polska is looking for a Java Software Engineer to join a long‑term development and maintenance project spanning seven Java applications.

You will become part of a five‑person development team responsible for implementing new features, maintaining existing systems, and designing REST APIs while collaborating with business stakeholders. Fluency in Polish and English is required, and a hybrid work model applies with two days in the office and three days remotely.

Qualifications

• Java backend development with 3+ years of experience
• Strong knowledge of Java 17+ and Spring Boot 3.x
• Experience designing and consuming REST APIs
• Relational databases experience with Oracle and PostgreSQL
• Experience with Liquibase for schema changes
• Familiarity with Git and CI/CD tools
• Knowledge of GlassFish 7 and Java EE/Jakarta EE is a plus
• Polish and English fluency required

Responsibilities

• Develop and enhance Java-based applications across seven projects
• Design and implement REST APIs and integrate with databases
• Collaborate in a 5-person team to deliver features and fix issues
• Manage database changes using Liquibase and optimize SQL queries
• Support maintenance and ongoing technical development of applications

Skills

Java 17+

3 years experience

Spring Boot 3.x

REST APIs

Tools

Liquibase

Oracle Database

PostgreSQL

Git

Linux

Bash

CI/CD (Azure DevOps/GitHub Actions/Jenkins)

GlassFish 7

Job description

Inetum Polska is looking for a Java Software Engineer to join a long‑term development and maintenance project spanning seven Java applications.

You will become part of a five‑person development team responsible for implementing new features, maintaining existing systems, and designing REST APIs while collaborating with business stakeholders. Fluency in Polish and English is required, and a hybrid work model applies with two days in the office and three days remotely.